Beer and Wine
The crystal-like material sometimes found in wine bottles is

prevented by cold stabilizing
residual diatomaceous earth
tannin
caused by excessive malic acid

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Beer and Wine
Wine yeast

is sensitive to sulphur di oxide
shows enhanced enzyme production in presence of sulphur di oxide
None of these
is resistant to sulphur di oxide

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Beer and Wine
The term Racking refers to

storing hoses to drain on a slanted board
adding yeast to initiate fermentation
removing clear liquid from sediment
stacking unlabeled wine in bins for aging

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